Persian kitchens in ancient times were known for their elaborate design and attention to detail, and some of them featured built-in wine racks. These kitchens were typically spacious and had separate areas for cooking, food preparation, and storage. The built-in wine racks were often made of wood or metal and were used to store and display a variety of wines. Wine was highly valued in Persian culture, and having a built-in wine rack in the kitchen was a way to showcase the family's collection and entertain guests.